[ ih-rash-uh-nl-ahyz ]
/ ɪˈræʃ ə nlˌaɪz /

verb (used with object), ir·ra·tion·al·ized, ir·ra·tion·al·iz·ing.

to make or cause to be irrational.

Nearby words

  1. irradicable,
  2. irrational,
  3. irrational number,
  4. irrationalism,
  5. irrationality,
  6. irrawaddy,
  7. irreal,
  8. irreality,
  9. irrebuttable,
  10. irreclaimable

Also especially British, ir·ra·tion·al·ise.

Origin of irrationalize

First recorded in 1890–95; irrational + -ize Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for irrationalize

  • And he wishes, unhappy man, to rationalize the irrational and irrationalize the rational.

    Tragic Sense Of Life|Miguel de Unamuno
  • The poor man wants to rationalize the irrational, and irrationalize the rational.